Great one! : D
I mean, that brings out the obvious. It's not that the new Pokemon are bad designed/unoriginal, it's just that the most of us played the games with this Pokemon in our childhood and human beings don't like changes..I'm sure, if Black and White are the first Pokemon games for a five year old today, he will have the same experience as we had with the first generation - maybe he will even hate the other ones of the previous generations..
Other than that, i kinda like most of the new Pokemon, I don't know what the ones expect, which are from generation 4 on constantly saying that the designs are bad..I mean, just try to think up 650 different creatures!

^this! well some of them. I think they look pretty damn cool if you ask me. Its just nobody is used to them yet.When D/P came out,a lot of people didn't like it either(well a lot of people still don't like it ). But some of them are cool, i like kimizan b/c he looks like a power ranger XD

Generation 5 brought us Desukaan. Therefore, it is the most awesome generation so far. I rest my case.

Seriously, though, I like a lot of the designs this generation. The final evolutions of starters seem pretty derp (especially Mijumaru's line, how does a cute otter thing evolve into... that?); but I found myself liking pretty much every pokémon, even the derps I would normally restrict to being HM slaves (Yorterrie and the cat).

Speaking of, I like how there are only 5 or 6 HMs this generation - it means I can build a team around pokémon I like, rather than ones I keep around because they use some obscure HM I might need to get an item on one obscure route.

Or *shudders* keep around for Defog. Screw that HM and every route that required it.

I must admit, this generation has a bunch of growers. Fail at the fire/fighting starter combo for the 3RD TIME. Right now, i happen to like them, they'll be even better when NoA translates the names and the story.